45 #if(defined(GLM_MESSAGES) && !defined(GLM_EXT_INCLUDED)) 
   46 #       pragma message("GLM: GLM_GTX_fast_square_root extension included") 
   56         template <
typename genType> 
 
   57         GLM_FUNC_DECL genType 
fastSqrt(genType x);
 
   61         template <
typename genType> 
 
   66         template <
typename T, precision P, 
template <
typename, precision> 
class vecType>
 
   71         template <
typename genType> 
 
   72         GLM_FUNC_DECL 
typename genType::value_type 
fastLength(genType 
const & x);
 
   76         template <
typename genType>
 
   77         GLM_FUNC_DECL genType 
fastDistance(genType x, genType y);
 
   81         template <
typename T, precision P, 
template <
typename, precision> 
class vecType>
 
   82         GLM_FUNC_DECL T 
fastDistance(vecType<T, P> 
const & x, vecType<T, P> 
const & y);
 
   86         template <
typename genType> 
 
   92 #include "fast_square_root.inl" 
GLM_FUNC_DECL T fastDistance(vecType< T, P > const &x, vecType< T, P > const &y)
Faster than the common distance function but less accurate. 
GLM_FUNC_DECL genType fastNormalize(genType const &x)
Faster than the common normalize function but less accurate. 
GLM_FUNC_DECL vecType< T, P > fastInverseSqrt(vecType< T, P > const &x)
Faster than the common inversesqrt function but less accurate. 
GLM_FUNC_DECL genType::value_type fastLength(genType const &x)
Faster than the common length function but less accurate. 
GLM_FUNC_DECL genType fastSqrt(genType x)
Faster than the common sqrt function but less accurate.